Furnace for smelting copper for lower blow-through with enriched oxygen

Abstract

The invention describe facilities for smelting copper for a lower blow-through with enriched oxygen, comprising a furnace for lower blow-through, which, in turn, comprises the following characteristics: A furnace body with a chamber and a partition inside, at least a supply inlet, a smoke outlet, a matte outlet, a slag outlet, at least one side opening for spray pistols, at least one lower opening for nozzles, and thermometer and level measurement openings; At least one oxygen lance, arranged between the lower openings, for injecting oxygen into the chamber; At least one side spray gun arranged inside the side openings in order to supply the chamber with coal dust or reductive gas.

1 . A copper smelting furnace for lower blow-through with enriched oxygen, wherein it comprises the following characteristics:
 A body of the furnace with a chamber and partition inside, at least one supply inlet, a smoke outlet, a matte outlet, as slag outlet, at least one side opening for spray guns, at least one lower opening for lances and openings for thermometer and level measurements;   At least one oxygen lance inside the lower openings to inject oxygen into the chamber;   At least one side spray gun inside the side openings to supply coal dust or reductive gas to the chamber.   
     
     
         2 . A copper smelting furnace for lower blow-through with enriched oxygen according to  claim 1 , wherein the lances are located at the same level or above the special bricks for lances or oar refractory lining. 
     
     
         3 . A copper smelting furnace for lower blow-through with enriched oxygen according to  claim 1 , wherein the partition is located between the area of lances and the end of the slag outlet. 
     
     
         4 . A copper smelting furnace for lower blow-through with enriched oxygen according to  claim 1 , wherein the furnace body has the shape of cask or cylinder and it can rotate, where the chamber cross-section is circular and the diameter of the section is constant the furnace's axial direction. 
     
     
         5 . A copper smelting furnace fur lower blow-through with enriched oxygen according to  claim 1 , wherein the furnace can also includes at least a supporting base, at least a supporting ring, at least a gear and at least a driving device to allow rotation of the furnace. 
     
     
         6 . A copper smelting furnace for lower blow-through with enriched oxygen according to  claim 1 , wherein the slag outlet is in the end wall of the furnace body, while the matte outlet is in the opposing end wall to the slag outlet or in the lower part of the side wall. 
     
     
         7 . A copper smelting furnace fur lower blow-through with enriched oxygen according to  claim 1 , wherein the angles between the lances and the vertical line should be within −65α≦65°.